[Specimen details]

Heteranthera dubia
Family Name Pontederiaceae
Currently Accepted Name Heteranthera dubia (Jacq.) MacMill. - Determined By: C. N. Horn, 1990
Determination History
Heteranthera dubia (Jacq.) MacMill.
Locality USA. North Carolina , Alleghany Co. : New River, 1.6 mi. N of Amelia.
Habitat Swamp.
Reproductive State
Collector A. E. Radford 44195
Collection Date 01 Aug 1961
Accession Number 77320
Image 77320.jpg
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Heteranthera dubia
Family Name Pontederiaceae
Currently Accepted Name Heteranthera dubia (Jacq.) MacMill. - Determined By: C. N. Horn, 1990
Determination History
Heteranthera dubia (Jacq.) MacMill.
Locality USA. Arkansas , Izard Co. : White River, 1.5 mi. W of Croker. T14N, R8W, Sec. 16.
Description Aquatic.
Habitat In edge of river.
Reproductive State
Collector R. D. Thomas 20515
with R. Reid
Collection Date 04 Aug 1970
Accession Number 115516
Image 115516.jpg
Plant Atlas Link Plant Atlas Citation

Heteranthera dubia
Family Name Pontederiaceae
Currently Accepted Name Heteranthera dubia (Jacq.) MacMill. - Determined By: C. N. Horn, 1990
Determination History
Heteranthera dubia (Jacq.) MacMill.
Locality USA. Arkansas , Izard Co. : White River, 3 mi. NW of Croker.
Habitat Edge of river.
Reproductive State
Collector R. D. Thomas 16316
with Bio. 451
Collection Date 05 Aug 1969
Accession Number 89796
Image 89796.jpg
Plant Atlas Link Plant Atlas Citation

Heteranthera dubia
Family Name Pontederiaceae
Currently Accepted Name Heteranthera dubia (Jacq.) MacMill. - Determined By: C. N. Horn, 1990
Determination History
Zosterella dubia (Jacq.) Small
Heteranthera dubia (Jacq.) MacMill. - Determined By: Wunderlin, 1978
Locality USA. Texas , Cameron Co. : Olmito Lake. 26° 1' 18" N 97° 32' 3" W
Reproductive State
Collector J. K. Small
Collection Date 26 May 1937
Accession Number 18974
Image 18974.jpg
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Heteranthera dubia
Family Name Pontederiaceae
Currently Accepted Name Heteranthera dubia (Jacq.) MacMill. - Determined By: S. R. Hill, 2005
Locality USA. Illinois , Kendall Co. : W side of Big Rock Creek, E of Rock Creek Road and pastures, at the creek; N of Hennig Road, Plano. 41° 42' 10" N 88° 30' 26" W
Description Local herb; flowers yellow, erect.
Habitat Margin and shallow water of creek at gravel shoals; merdium-gradient creek, clear water; Eragrostis hypnoides, Veronica comosa, Polygonum puncatum, Phalaris; in mud and shallow water.
Reproductive State
Collector S. R. Hill
Collection Date 01 Sep 2005
Accession Number 267393
Image 267393.jpg
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Heteranthera dubia
Family Name Pontederiaceae
Currently Accepted Name Heteranthera dubia (Jacq.) MacMill. - Determined By: C. N. Horn, 1990
Locality USA. District of Columbia First Lock. 38° 52' 19" N 77° 0' 21" W
Reproductive State
Collector E. S. Steele
Collection Date 28 Jul 1897
Accession Number 31955
Image 31955.jpg
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Heteranthera dubia
Family Name Pontederiaceae
Currently Accepted Name Heteranthera dubia (Jacq.) MacMill. - Determined By: S. R. Hill, 2011
Locality USA. Illinois , McHenry Co. : S margin of Nippersink Creek, S of US 12, dairy farm, Solon Mills, SSE of Richmond; coordinate datum: WGS84/NAD83; Richmond 7.5' quadrangle. T46N, R8E, Sec. 27 NE¼ SE¼. 42° 26' 14" N 88° 17' 3" E
Description Locally common; aquatic and stranded forms, flowers yello, eret - only on stranded plants.
Habitat Mud flats along stream, S side, with Potamogeton; in shallow water.
Reproductive State
Elevation 770 to ft
Collector S. R. Hill
Collection Date 21 Sep 2011
Accession Number 268059
Image 268059.jpg
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Heteranthera dubia
Family Name Pontederiaceae
Currently Accepted Name Heteranthera dubia (Jacq.) MacMill. - Determined By: C. N. Horn, 1990
Locality USA. New York , Tompkins Co. : Dryden Lake. 42° 29' 27" N 76° 17' 50" W
Reproductive State
Collector E. S. Ford
with W.C. Muenscher
Collection Date 04 Sep 1940
Accession Number 36212
Image 36212.jpg
Plant Atlas Link Plant Atlas Citation

Heteranthera dubia
Family Name Pontederiaceae
Currently Accepted Name Heteranthera dubia (Jacq.) MacMill. - Determined By: C. N. Horn, 1990
Locality USA. New York , Tompkins Co. : Dryden Lake. 42° 29' 27" N 76° 17' 50" W
Reproductive State
Collector E. S. Ford
with W.C. Muenscher
Collection Date 04 Sep 1940
Accession Number 11360
Image 11360.jpg
Plant Atlas Link Plant Atlas Citation

Heteranthera dubia
Family Name Pontederiaceae
Currently Accepted Name Heteranthera dubia (Jacq.) MacMill. - Determined By: C. N. Horn, 1990
Locality USA. New York , Tompkins Co. : Dryden Lake. 42° 29' 27" N 76° 17' 50" W
Description Submersed.
Reproductive State
Collector E. S. Ford
Collection Date 04 Sep 1940
Accession Number 35952
Image 35952.jpg
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Heteranthera dubia
Family Name Pontederiaceae
Currently Accepted Name Heteranthera dubia (Jacq.) MacMill. - Determined By: C. N. Horn, 1990
Locality USA. Oklahoma , Mayes Co. : Spavinaw Creek below Lake Spavinaw Dam in state park picnic area. T22N, R21E, Sec. 15. 36° 23' 28" N 95° 2' 48" W
Description Abundant; flowers bright yellow, 3 stamens, one pistill with dark stigma.
Habitat In small stagnant pool in gravel bars with Salix nigra, S. caroliniana, Platanus occidentalis; flood plain.
Reproductive State
Collector R. J. Tyrl
with S.C. Barber
Collection Date 14 Sep 1975
Accession Number 299184
Image 299184.jpg
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